Modicon M221 Plc Page 16 Description

16 Description Modicon M221 and M221 Book logic controllers Modicon M221 logic controllers Description M221 logic controllers (TM221C ppp ) 1 Removable screw terminal block, 3 terminals for connecting the 24 V c or 100-240 V a power supply (depending on the model) 2 On TM221CE ppp controllers: RJ 45 connector for Ethernet network, with activity and exchange speed LED indicator 3 Behind the removable cover: - Mini-B USB connector for connecting a PC equipped with SoMachine Basic software - Slot for the industrial SD memory card - Run/Stop switch 4 Serial link port (RS 232 or RS 485): RJ 45 connector 5 Behind a flap: dedicated removable connector for two analog inputs 6 QR code for access to the controller technical documentation 7 Connection of 24 V c logic inputs on removable screw terminal blocks (1) 8 On top of the controller: slot for backup battery 9 LED display block showing: - the status of the controller and its components (battery, industrial SD memory card) - the status of the serial link - the status of the embedded I/O 10 On the side of the controller: TM3 bus connector for the link with a Modicon TM3 expansion module 11 Slot(s) for I/O cartridge(s), communication cartridge, or application cartridge(s): one on M221 controllers with 16 and 24 I/O, two on M221 controllers with 40 I/O 12 Connection of relay/transistor logic outputs: on removable screw terminal blocks (1) 13 Clip for locking on 5 symmetrical rail (1) Removable screw terminal blocks equipped with screw terminals, supplied with M221 controller. M221: 16 I/O M221: 40 I/O M221: 24 I/O 1 7 8 10 13 12 11 12 11 3 4 6 2 5 7 9 8 7 8 13 12 9 1 3 4 6 2 5 1 3 4 6 2 5 10 Graphic display unit TMH2GDB 1 Control screen: backlit STN graphic screen, two-tone (white/red) 2 Ten command buttons, two of which can be customized with the option of identifying associated functions 3 Rotary navigation and control wheel On the back of the display unit: 4 Mounting system consisting of locking nut, seal, and anti-rotation tee 5 RJ 45 connector for the cable connecting the graphic display unit to the Modicon M221/M221 Book logic controller 5 4 3 2 1 TMH2GDB

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